| 288-E |
Polo the Penguin and Lucky Numbers
|
dp
implementation
math
|
2800
|
| 288-D |
Polo the Penguin and Trees
|
combinatorics
dfs and similar
trees
|
2400
|
| 288-C |
Polo the Penguin and XOR operation
|
implementation
math
|
1700
|
| 288-B |
Polo the Penguin and Houses
|
combinatorics
|
1500
|
| 288-A |
Polo the Penguin and Strings
|
greedy
|
1300
|
| 287-B |
Pipeline
|
binary search
math
|
1700
|
| 287-A |
IQ Test
|
brute force
implementation
|
1100
|
| 286-E |
Ladies' Shop
|
constructive algorithms
fft
math
|
2800
|
| 286-D |
Tourists
|
data structures
sortings
|
2600
|
| 286-C |
Main Sequence
|
greedy
implementation
|
2100
|
| 286-B |
Shifting
|
implementation
|
2200
|
| 286-A |
Lucky Permutation
|
constructive algorithms
math
|
1400
|
| 285-E |
Positions in Permutations
|
combinatorics
dp
math
|
2600
|
| 285-D |
Permutation Sum
|
bitmasks
combinatorics
dp
+2
|
1900
|
| 285-C |
Building Permutation
|
greedy
implementation
sortings
|
1200
|
| 285-B |
Find Marble
|
implementation
|
1200
|
| 285-A |
Slightly Decreasing Permutations
|
greedy
implementation
|
1100
|
| 284-B |
Cows and Poker Game
|
brute force
implementation
|
1000
|
| 284-A |
Cows and Primitive Roots
|
implementation
math
number theory
|
1400
|
| 283-E |
Cow Tennis Tournament
|
combinatorics
data structures
math
|
2800
|
| 283-D |
Cows and Cool Sequences
|
dp
math
number theory
|
2400
|
| 283-C |
Coin Troubles
|
dp
|
2100
|
| 283-B |
Cow Program
|
dfs and similar
dp
graphs
|
1700
|
| 283-A |
Cows and Sequence
|
constructive algorithms
data structures
implementation
|
1600
|
| 282-E |
Sausage Maximization
|
bitmasks
data structures
trees
|
2200
|
| 282-D |
Yet Another Number Game
|
dp
games
|
2100
|
| 282-C |
XOR and OR
|
constructive algorithms
implementation
math
|
1500
|
| 282-B |
Painting Eggs
|
greedy
math
|
1500
|
| 282-A |
Bit++
|
implementation
|
800
|
| 281-B |
Nearest Fraction
|
brute force
implementation
two pointers
|
1700
|
| 281-A |
Word Capitalization
|
implementation
strings
|
800
|
| 280-E |
Sequence Transformation
|
brute force
data structures
dp
+2
|
3000
|
| 280-D |
k-Maximum Subsequence Sum
|
data structures
flows
graphs
+1
|
2800
|
| 280-C |
Game on Tree
|
implementation
math
probabilities
+1
|
2200
|
| 280-B |
Maximum Xor Secondary
|
data structures
implementation
two pointers
|
1800
|
| 280-A |
Rectangle Puzzle
|
geometry
|
2000
|
| 279-E |
Beautiful Decomposition
|
dp
games
greedy
+1
|
1900
|
| 279-D |
The Minimum Number of Variables
|
bitmasks
dp
|
2200
|
| 279-C |
Ladder
|
dp
implementation
two pointers
|
1700
|
| 279-B |
Books
|
binary search
brute force
implementation
+1
|
1400
|
| 279-A |
Point on Spiral
|
brute force
geometry
implementation
|
1400
|
| 278-B |
New Problem
|
brute force
strings
|
1500
|
| 278-A |
Circle Line
|
implementation
|
800
|
| 277-E |
Binary Tree on Plane
|
flows
trees
|
2400
|
| 277-D |
Google Code Jam
|
dp
probabilities
|
2800
|
| 277-C |
Game
|
games
implementation
|
2400
|
| 277-B |
Set of Points
|
constructive algorithms
geometry
|
2300
|
| 277-A |
Learning Languages
|
dfs and similar
dsu
|
1400
|
| 276-E |
Little Girl and Problem on Trees
|
data structures
graphs
trees
|
2100
|
| 276-D |
Little Girl and Maximum XOR
|
bitmasks
dp
greedy
+2
|
1700
|